package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import com.sky.vo.EmployeeLoginVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        //请求密码参数进行加密
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * 新增员工
     */

    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();

        //对象属性拷贝
        BeanUtils.copyProperties(employeeDTO,employee);

        //设置账号状态,默认正常状态 1为正常 0为锁定
        employee.setStatus(StatusConstant.ENABLE);

        //创建和修改的时间统一
        LocalDateTime now = LocalDateTime.now();
        employee.setCreateTime(now);
        employee.setUpdateTime(now);

        //设置默认密码 为123456 进行md5 加密
        String defaultPassword = DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes());
        employee.setPassword(defaultPassword);


        employeeMapper.insert(employee);




    }

    /**
     * 成员进行分页查询
     * @param employeePageQueryDTO
     * @return
     */
    @Override
    public PageResult page(EmployeePageQueryDTO employeePageQueryDTO) {
        //开始分页查询
         PageHelper.startPage(employeePageQueryDTO.getPage(), employeePageQueryDTO.getPageSize());

        Page<Employee> employees = employeeMapper.pageQuery(employeePageQueryDTO);

        long total = employees.getTotal();
        List<Employee> result = employees.getResult();

        return new PageResult(total,result);
    }

    /**
     * 更新员工账号状态
     * @param id
     * @param status
     */
    @Override
    public void updateStatus(Long id, Integer status) {
        employeeMapper.updateStatus(id,status);
    }

    /**
     * 编辑员工信息
     * @param employeeDTO
     */
    @Override
    @Transactional
    public void editInfo(EmployeeDTO employeeDTO) {
        //创建数据源
        Employee employee =new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        // 修改更新时间 和更新用户id
//        employee.setUpdateUser(BaseContext.getCurrentId());
//        employee.setUpdateTime(LocalDateTime.now());
        //完成数据更新
        employeeMapper.update(employee);
    }


    /**
     * 根据成员ID 查找数据
     * @param id
     * @return
     */
    @Override
    public Employee byIdFindInfo(Long id) {
        return employeeMapper.byIdFindInfo(id);
    }


}
